%!PS
newpath                   % start a new shape
0 0 moveto                % move to a start location
-5 10 lineto              % line to a new location
-10 20 10 20 5 10 curveto % curve to a third location
5 10 lineto               % line to a fourth location
closepath                 % connect back to the start location
0 setgray                 % set the drawing colour to black
fill                      % fill the current shape
